Zhang Mengru, Wang Enhua, Ni Meng, Zheng Keqing, Ouyang Minggao, Hu Haoran, Wang Hewu, Lu Languang, Ren Dongsheng, Chen Youpeng
School of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081, China.
Department of Building and Real Estate, Research Institute for Sustainable Urban Development (RISUD) & Research Institute for Smart Energy (RISE), The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China.
Heliyon. 2024 Sep 4;10(17):e37271. doi: 10.1016/j.heliyon.2024.e37271. eCollection 2024 Sep 15.
Metal-supported solid oxide fuel cell (MS-SOFC) is very promising for intermediate temperature solid oxide fuel cell (SOFC) due to better mechanical strength, low materials cost, and simplified stack assembling. However, the effects of metal support on the performance and temperature field of MS-SOFC is still necessary for further study. In this study, a three-dimensional multi-physical model is developed to investigate how the use of metal support influence the electrochemical performance and the temperature field of MS-SOFC with a ceria-based electrolyte. The multi-physical model fully considers the conservation equations of mass, momentum, and energy that are coupled with mass transport and electrochemical reactions. The wall temperature in the radiation model is calculated using a discrete method. It is found that the radiation heat flux accounts for 3.13 % of the total heat flux. More importantly, the temperature difference of MS-SOFC is 3.61 % lower than that of conventional anode-supported SOFC, leading to improved temperature uniformity and cell durability.
金属支撑固体氧化物燃料电池（MS-SOFC）由于具有更好的机械强度、较低的材料成本以及简化的电堆组装工艺，在中温固体氧化物燃料电池（SOFC）领域极具前景。然而，金属支撑对MS-SOFC性能和温度场的影响仍需进一步研究。在本研究中，建立了一个三维多物理场模型，以研究金属支撑的使用如何影响基于氧化铈电解质的MS-SOFC的电化学性能和温度场。该多物理场模型充分考虑了质量、动量和能量守恒方程，并与质量传输和电化学反应相耦合。辐射模型中的壁面温度采用离散方法计算。结果发现，辐射热通量占总热通量 的3.13%。更重要的是，MS-SOFC的温差比传统阳极支撑SOFC低3.61%，从而提高了温度均匀性和电池耐久性。
